vcglib/wrap/qt/PolyToQImage.h

97 lines
4.1 KiB
C++

#ifndef POLYTOQIMAGE_H
#define POLYTOQIMAGE_H
#include <QImage>
#include <QSvgGenerator>
#include <QPainter>
#include <vcg/space/point2.h>
#include <vcg/space/color4.h>
#include <vcg/space/box2.h>
#include <vcg/math/similarity2.h>
///this class is used to pass global
///parameters to the polygonal dumper
class PolyDumperParam
{
public:
/// the backgrround color
vcg::Color4b backgroundColor;
/// true if the polygons must be filled with color
bool fill;
/// true if the filling color is random
bool randomColor;
/// the filling color of polygons, used only if randomColor==false
vcg::Color4b FillColor;
/// The size of the font. If zero (default) it is automatically chosen.
int fontSize;
/// dimension of the image (in PNG are pixels, while in SVG is the workspace in points)
int width;
int height;
/// DPI resolution, used only for SVG
int dpi;
///Handy function for setting the size of the drawing
void SetSVGDimInMm(float widthMM,float heightMM,float _dpi=72)
{
dpi=_dpi;
float widthInch = float(widthMM / 25.4f);
float heightInch = float(heightMM / 25.4f);
width = widthInch * _dpi;
height = heightInch * _dpi;
}
///default constructor
PolyDumperParam()
{
backgroundColor = vcg::Color4b::Gray;
width=1024;
height=1024;
dpi=72;
fontSize=0;
fill=false;
randomColor=true;
FillColor=vcg::Color4b(0,0,0,255);
}
};
///this class is used to draw polygons on an image could be vectorial or not
class PolyDumper
{
///this class draw a black mask fora given polygon, cenetered and scaled to fit with
///the image size, it return the transformation to tranform back the polygon to 2D space
static void DrawPolygonMask(const std::vector< std::vector<vcg::Point2f> > &polyVec,QImage &img,
vcg::Similarity2f &ret,const vcg::Similarity2f &trans);
///return the max radius of a point inside a polygon ,given the mask image
///actually it evaluate the maximum bounding box
static int getMaxMaskRadius(int x,int y,QImage &img);
///return the point inside the polygon with the bigger distance to the border,
///this is used to write labels within the polygon, it handle polygons with holes too
static vcg::Point2f GetIncenter(const std::vector< std::vector<vcg::Point2f> > &polyVec,
const vcg::Similarity2f &tra1,int &radius,int resolution=100);
static void rectSetToPolySet(std::vector< vcg::Box2f > &rectVec, std::vector< std::vector<vcg::Point2f> > &polyVec);
public:
///write a polygon on a PNG file, format of the polygon is vector of vector of contours...nested contours are holes
///takes the name of the image in input, the set of polygons, the set of per polygons transformation,
///the label to be written and the global parameter for drawing style
static void dumpPolySetPNG(const char * imageName, std::vector< std::vector< std::vector<vcg::Point2f> > > &polyVecVec,
std::vector<vcg::Similarity2f> &trVec, std::vector<std::string> &labelVec, PolyDumperParam &pp);
//write a polygon on a SVG file, format of the polygon is vector of vector of contours...nested contours are holes
///takes the name of the image in input, the set of polygons, the set of per polygons transformation,
///the label to be written and the global parameter for drawing style
static void dumpPolySetSVG(const char * imageName, std::vector< std::vector< std::vector<vcg::Point2f> > > &polyVecVec,
std::vector<vcg::Similarity2f> &trVec, std::vector<std::string> &labelVec, PolyDumperParam &pp);
static void dumpPolySetPNG(const char * imageName, std::vector< std::vector< std::vector<vcg::Point2f> > > &polyVecVec,
std::vector<vcg::Similarity2f> &trVec, PolyDumperParam &pp);
static void dumpPolySetSVG(const char * imageName, std::vector< std::vector< std::vector<vcg::Point2f> > > &polyVecVec,
std::vector<vcg::Similarity2f> &trVec, PolyDumperParam &pp);
static void dumpPolySetPNG(const char * imageName, std::vector< std::vector<vcg::Point2f> > &polyVecVec,
std::vector<vcg::Similarity2f> &trVec, PolyDumperParam &pp);
static void dumpPolySetSVG(const char * imageName, std::vector< std::vector<vcg::Point2f> > &polyVecVec,
std::vector<vcg::Similarity2f> &trVec, PolyDumperParam &pp);
};
#endif // POLYTOQIMAGE_H